Motorola ASTRO XTL 5000 Basic Service Manual page 193

Term
UART
UHF
Universal
Asynchronous
Receiver Transmitter
UCM
Universal Serial Bus
USB
VCO
VHF
VIP
VOCON
vocoder
vocoder/controller
voice encoder
voltage-controlled
oscillator
6871769L01-A
See Universal Asynchronous Receiver Transmitter.
Ultra-High Frequency.
A microchip with programming that controls a computer's interface to its
attached serial devices.
Universal Crypto Module
An external bus standard that supports data transfer rates of 12 Mbps.
See Universal Serial Bus.
See voltage-controlled oscillator.
Very-High Frequency.
Vehicle Interface Port.
See vocoder/controller.
An electronic device for synthesizing speech by implementing a
compression algorithm particular to voice. See also voice encoder.
A PC board that contains an ASTRO radio's microcontroller, DSP,
memory, audio and power functions, and interface support circuitry.
The DSP-based system for digitally processing analog signals, and
includes the capabilities of performing voice compression algorithms or
voice encoding. See also vocoder.
An oscillator in which the frequency of oscillation can be varied by
changing a control voltage.
Definition
Glossary-9
October 30, 2006